A3983SLPTR

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PMIC stands for Power Management Integrated Circuits and a Motor Driver is an electronic component that controls the motion of a motor. The A3983SLPTR (SLPTR) is an integrated motor driver that is capable of driving two brushed DC motors bi-directionally at up to 2A continuous, or 2.5A peak, per output. It is an eight-pin integrated circuit that provides enough current per channel to drive two bi-directional brushed DC motors while maintaining structural and functional simplicity.

The A3983SLPTR is ideal for applications such as robots, drones and robotic toys that require precise and reliable control of two brushed DC motors. It includes advanced current protection and status reporting for safe, secure motor operation. The integrated circuit includes logic-level inputs for both direction and speed control as well as a slew rate output selection. It also has an adjustable over-current threshold and thermal shutdown capability to protect the driver.

In terms of its actual function, the A3983SLPTR can provide up to 2 amps of continuous drive current and up to 2.5 amps of peak drive current per output. This is due to its peak current of 2.5 A, low on-resistance of 0.55 ohms, and the input logic range of 1 V to 5 V. It can operate from a supply voltage ranging from 4.5 V to 24 V, allowing for high-voltage applications. Furthermore, it includes advanced thermal protection and current protection with adjustable over-current thresholds as well as internal thermal shutdown.

The A3983SLPTR utilizes a simple, yet effective interface for controlling direction and speed. The inputs, labeled DIR and STEP, are the two terminals used to control the direction and speed of the output signals, respectively. Using two binary signals, the direction and speed signals can be combined in various ways to produce a single directional output. The logic level of both inputs can range from 1 V to 5 V, allowing the A3983SLPTR to interface with a wide array of microcontrollers or other digital circuits.

The two output signals, labeled PH and ENA, are the two terminals that control the speed and direction of the motor. The PH output is used to control the direction of the motor; logic-level high sets the motor to forward and logic-level low sets the motor to reverse. The ENA output is used to control the speed of the motor; logic-level low will set the motor to off and the duty cycle of the logic-level high signal sets the speed of the motor. The A3983SLPTR also includes an additional input (SLP) that can be used to increase the slew rate of the output signals. This feature allows for faster acceleration and deceleration.

In conclusion, the A3983SLPTR is a powerful, yet simple motor driver for applications such as robots, drones and robotic toys that require precise and reliable control of two brushed DC motors. Its logic-level inputs make it easy to interface with a wide array of microcontrollers. Additionally, it provides enough current per channel to drive two bi-directional brushed DC motors while providing advanced current protection and status reporting for safe and secure motor operation. The A3983SLPTR is the perfect solution for those looking for reliable and cost-effective motor control solutions.

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